3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a= null; $b = 20; echo '<br>a-'. $a; $c = $b + $a; echo '<br>c-'.$c; $a = $a + $b; echo '<br>na-'.$a;

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0120.00618.38
8.3.50.0120.00621.97
8.3.40.0060.01218.60
8.3.30.0120.00318.97
8.3.20.0070.00020.18
8.3.10.0000.00823.64
8.3.00.0090.00019.02
8.2.180.0130.00616.50
8.2.170.0180.00322.96
8.2.160.0030.01020.37
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00419.36
8.2.110.0060.00320.91
8.2.100.0040.00717.72
8.2.90.0080.00017.91
8.2.80.0040.00417.97
8.2.70.0100.00017.63
8.2.60.0050.00318.04
8.2.50.0000.00918.07
8.2.40.0080.00019.95
8.2.30.0000.00818.30
8.2.20.0040.00417.61
8.2.10.0070.00018.11
8.2.00.0000.00819.46
8.1.280.0070.01425.92
8.1.270.0040.00423.70
8.1.260.0000.00726.35
8.1.250.0100.00028.09
8.1.240.0090.00323.94
8.1.230.0030.00720.91
8.1.220.0000.00817.91
8.1.210.0030.00618.94
8.1.200.0060.00317.35
8.1.190.0090.00017.23
8.1.180.0000.00918.10
8.1.170.0040.00418.48
8.1.160.0050.00321.89
8.1.150.0000.00818.61
8.1.140.0050.00217.35
8.1.130.0070.00017.78
8.1.120.0040.00417.27
8.1.110.0030.00517.41
8.1.100.0040.00317.37
8.1.90.0080.00017.37
8.1.80.0030.00617.45
8.1.70.0030.00317.39
8.1.60.0080.00017.52
8.1.50.0060.00317.45
8.1.40.0040.00417.50
8.1.30.0000.00817.48
8.1.20.0080.00017.54
8.1.10.0030.00617.52
8.1.00.0110.00017.45
8.0.300.0040.00419.89
8.0.290.0000.00716.63
8.0.280.0050.00318.42
8.0.270.0070.00017.25
8.0.260.0060.00017.24
8.0.250.0000.00716.93
8.0.240.0050.00216.97
8.0.230.0070.00016.86
8.0.220.0030.00316.88
8.0.210.0000.00716.96
8.0.200.0060.00016.99
8.0.190.0040.00416.98
8.0.180.0060.00316.99
8.0.170.0040.00417.03
8.0.160.0000.00716.90
8.0.150.0030.00616.95
8.0.140.0000.00916.90
8.0.130.0090.00013.43
8.0.120.0040.00416.95
8.0.110.0070.00016.86
8.0.100.0000.00716.77
8.0.90.0040.00416.79
8.0.80.0120.00916.84
8.0.70.0020.00516.92
8.0.60.0000.00816.91
8.0.50.0050.00316.81
8.0.30.0160.00817.02
8.0.20.0060.01117.40
8.0.10.0030.00517.06
8.0.00.0080.01016.70
7.4.330.0050.00015.03
7.4.320.0060.00016.51
7.4.300.0030.00316.36
7.4.290.0070.00016.38
7.4.280.0070.00016.43
7.4.270.0070.00016.36
7.4.260.0080.00016.54
7.4.250.0070.00016.46
7.4.240.0030.00416.41
7.4.230.0030.00316.48
7.4.220.0130.00316.57
7.4.210.0040.01116.64
7.4.200.0040.00416.50
7.4.160.0040.01216.37
7.4.150.0310.03217.40
7.4.140.0080.01017.86
7.4.130.0090.00816.50
7.4.120.0080.00916.37
7.4.110.0030.01616.48
7.4.100.0100.00716.54
7.4.90.0130.00316.27
7.4.80.0110.01219.39
7.4.70.0210.00616.62
7.4.60.0110.01416.55
7.4.50.0090.00016.30
7.4.40.0100.00616.17
7.4.30.0130.00616.22
7.4.00.0060.01214.93
7.3.330.0050.00013.03
7.3.320.0020.00213.08
7.3.310.0000.00716.06
7.3.300.0070.00016.21
7.3.290.0030.01016.19
7.3.280.0090.00916.18
7.3.270.0120.00617.40
7.3.260.0100.01016.26
7.3.250.0150.00516.42
7.3.240.0140.00316.43
7.3.230.0150.00416.40
7.3.210.0130.00316.46
7.3.200.0080.00819.39
7.3.190.0110.00616.34
7.3.180.0090.00616.52
7.3.170.0120.00316.41
7.3.160.0060.00916.48
7.3.120.0040.01114.43
7.2.330.0100.00716.69
7.2.320.0070.01416.46
7.2.310.0080.00816.69
7.2.300.0070.01416.48
7.2.290.0030.01316.48
7.2.110.0210.00716.51
7.2.100.0170.00716.59
7.2.90.0130.00616.70
7.2.80.0140.00716.44
7.2.70.0110.01116.70
7.2.60.0280.00316.69
7.2.50.0190.00616.96
7.2.40.0130.01016.93
7.2.30.0060.00916.54
7.2.20.0230.00616.99
7.2.10.0230.00016.84
7.2.00.0150.00816.68
7.1.230.0200.01015.52
7.1.220.0260.00615.27
7.1.210.0090.00815.55
7.1.200.0220.00315.44
7.1.190.0290.00015.45
7.1.180.0170.00015.63
7.1.170.0170.00515.66
7.1.160.0190.00015.70
7.1.150.0140.00715.54
7.1.140.0220.00415.64
7.1.130.0220.00315.22
7.1.120.0210.00415.65
7.1.110.0210.00315.87
7.1.100.0190.00715.63
7.1.90.0500.00715.76
7.1.80.0130.00515.80
7.1.70.0070.00816.38
7.1.60.0180.00717.68
7.1.50.0180.00916.16
7.1.40.0260.00315.56
7.1.30.0230.00615.95
7.1.20.0170.00615.77
7.1.10.0170.00715.73
7.1.00.0110.04019.04
7.0.310.0180.00615.15
7.0.300.0270.00015.41
7.0.290.0170.00315.15
7.0.280.0250.00415.34
7.0.270.0190.00514.98
7.0.260.0180.00615.04
7.0.250.0140.01015.46
7.0.240.0120.00315.33
7.0.230.0100.00515.44
7.0.220.0150.00315.21
7.0.210.0200.00015.30
7.0.200.0100.00216.04
7.0.190.0180.00015.22
7.0.180.0230.00415.28
7.0.170.0090.00915.54
7.0.160.0040.01315.36
7.0.150.0160.01215.34
7.0.140.0120.03918.84
7.0.130.0130.00715.45
7.0.120.0230.00515.57
7.0.110.0140.00315.25
7.0.100.0120.00415.21
7.0.90.0210.00515.21
7.0.80.0130.01015.51
7.0.70.0150.00415.50
7.0.60.0150.03317.54
7.0.50.0060.02816.61
7.0.40.0070.02716.67
7.0.30.0230.04016.71
7.0.20.0200.02416.67
7.0.10.0180.02916.50
7.0.00.0110.04216.79
5.6.380.0080.00814.08
5.6.370.0150.00313.89
5.6.360.0060.00914.14
5.6.350.0130.01314.42
5.6.340.0080.00814.51
5.6.330.0140.00514.03
5.6.320.0170.00413.89
5.6.310.0150.00314.24
5.6.300.0140.00414.20
5.6.290.0130.00514.38
5.6.280.0060.04217.45
5.6.270.0140.00014.39
5.6.260.0130.00814.20
5.6.250.0150.00414.15
5.6.240.0110.00614.35
5.6.230.0090.00514.17
5.6.220.0100.00713.97
5.6.210.0090.02217.52
5.6.200.0060.04716.27
5.6.190.0160.04017.25
5.6.180.0080.02917.29
5.6.170.0210.04217.30
5.6.160.0030.02617.39
5.6.150.0130.03716.23
5.6.140.0050.02616.25
5.6.130.0120.02016.28
5.6.120.0110.03917.65
5.6.110.0100.03917.73
5.6.100.0100.03917.69
5.6.90.0050.04817.38
5.6.80.0080.02817.28
5.6.70.0230.02617.25
5.6.60.0110.01014.08
5.6.50.0070.01014.04
5.6.40.0180.00014.10
5.6.30.0150.00514.03
5.6.20.0130.00014.25
5.6.10.0090.00714.03
5.6.00.0140.00314.13
5.5.380.0140.00010.72
5.5.370.0040.00810.92
5.5.360.0070.00410.89
5.5.350.0070.04215.71
5.5.340.0150.01714.41
5.5.330.0100.02015.45
5.5.320.0200.04115.72
5.5.310.0050.03515.74
5.5.300.0040.04914.50
5.5.290.0080.03314.64
5.5.280.0020.03215.96
5.5.270.0110.04315.89
5.5.260.0090.02015.64
5.5.250.0070.04515.73
5.5.240.0100.04215.41
5.5.230.0100.00311.04
5.5.220.0120.00011.05
5.5.210.0040.00810.97
5.5.200.0070.01011.13
5.5.190.0040.00811.03
5.5.180.0100.00210.78
5.5.170.0180.00014.27
5.5.160.0080.00310.88
5.5.150.0100.00411.02
5.5.140.0020.00910.82
5.5.130.0040.00710.81
5.5.120.0110.00010.95
5.5.110.0080.00510.61
5.5.100.0100.00310.88
5.5.90.0040.00911.11
5.5.80.0100.00611.12
5.5.70.0060.00610.81
5.5.60.0100.00311.03
5.5.50.0060.00310.85
5.5.40.0050.00910.92
5.5.30.0110.00010.61
5.5.20.0040.00811.02
5.5.10.0040.00810.98
5.5.00.0070.00710.89
5.4.450.0180.01924.01
5.4.440.0200.02122.35
5.4.430.0160.02322.27
5.4.420.0220.02222.11
5.4.410.0210.01921.13
5.4.400.0240.01821.14
5.4.390.0210.02121.08
5.4.380.0090.03414.68
5.4.370.0160.02614.77
5.4.360.0160.02814.78
5.4.350.0110.03014.84
5.4.340.0160.02814.66
5.4.330.0070.00711.10
5.4.320.0110.02211.66
5.4.310.0110.02411.62
5.4.300.0070.02411.53
5.4.290.0090.02011.64
5.4.280.0070.01911.54
5.4.270.0070.02011.77
5.4.260.0090.02011.71
5.4.250.0080.02011.68
5.4.240.0100.01911.57
5.4.230.0090.02011.56
5.4.220.0100.01711.71
5.4.210.0080.01911.62
5.4.200.0100.02111.49
5.4.190.0080.02111.47
5.4.180.0090.01811.59
5.4.170.0040.02411.72
5.4.160.0090.01711.50
5.4.150.0070.02111.58
5.4.140.0060.02211.53
5.4.130.0070.01911.58
5.4.120.0040.02411.29
5.4.110.0070.02111.29
5.4.100.0090.01911.35
5.4.90.0070.02711.40
5.4.80.0080.02111.45
5.4.70.0110.01911.45
5.4.60.0080.02011.51
5.4.50.0090.01911.35
5.4.40.0060.02111.42
5.4.30.0080.02011.43
5.4.20.0100.02011.46
5.4.10.0060.02011.37
5.4.00.0070.02211.19
5.3.290.0090.02111.71
5.3.280.0050.02411.66
5.3.270.0100.02011.67
5.3.260.0060.02411.67
5.3.250.0040.02211.67
5.3.240.0090.01811.66
5.3.230.0090.02311.66
5.3.220.0080.02211.65
5.3.210.0080.02011.65
5.3.200.0080.02011.65
5.3.190.0070.02111.65
5.3.180.0090.01811.64
5.3.170.0090.02211.64
5.3.160.0120.01711.64
5.3.150.0090.02311.64
5.3.140.0080.02511.64
5.3.130.0090.02311.64
5.3.120.0070.02811.64
5.3.110.0090.02111.63
5.3.100.0090.02011.37
5.3.90.0080.02211.35
5.3.80.0110.01911.35
5.3.70.0050.02211.35
5.3.60.0060.02011.34
5.3.50.0080.01811.31
5.3.40.0060.02211.30
5.3.30.0050.02211.28
5.3.20.0070.01911.17
5.3.10.0080.02111.16
5.3.00.0070.02111.14
5.2.170.0070.0149.90
5.2.160.0050.0179.90
5.2.150.0050.0169.90
5.2.140.0050.0159.89
5.2.130.0070.0199.88
5.2.120.0050.0179.87
5.2.110.0070.0169.88
5.2.100.0060.0159.88
5.2.90.0060.0169.88
5.2.80.0060.0169.88
5.2.70.0070.0179.87
5.2.60.0040.0199.85
5.2.50.0030.0189.83
5.2.40.0040.0219.82
5.2.30.0070.0149.81
5.2.20.0060.0179.80
5.2.10.0060.0199.77
5.2.00.0040.0219.70
5.1.60.0060.0129.35
5.1.50.0090.0139.34
5.1.40.0070.0149.33
5.1.30.0030.0189.51
5.1.20.0020.0219.52
5.1.10.0090.0129.38
5.1.00.0050.0159.38
5.0.50.0010.0148.62
5.0.40.0050.0118.55
5.0.30.0050.0158.46
5.0.20.0030.0118.44
5.0.10.0060.0118.43
5.0.00.0020.0188.43
4.4.90.0020.0137.70
4.4.80.0020.0137.68
4.4.70.0040.0117.69
4.4.60.0050.0097.69
4.4.50.0030.0097.69
4.4.40.0050.0147.66
4.4.30.0050.0077.69
4.4.20.0030.0107.73
4.4.10.0040.0097.73
4.4.00.0060.0147.68
4.3.110.0010.0127.64
4.3.100.0040.0087.64
4.3.90.0050.0097.62
4.3.80.0030.0157.60
4.3.70.0020.0147.62
4.3.60.0030.0097.62
4.3.50.0030.0117.62
4.3.40.0040.0147.58
4.3.30.0030.0106.95
4.3.20.0040.0096.94
4.3.10.0020.0116.92
4.3.00.0050.00820.79

preferences:
61.08 ms | 401 KiB | 5 Q